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Heavy trailers, campers, or bed loads can make the rear sag and throw off steering and braking. These SumoSprings helper springs add up to 1,400 lbs of support at 50-percent compression to level your ride and keep handling steady. They upgrade your rear suspension so your factory setup doesn’t have to work as hard, reducing squat and improving stability when hauling or towing.
Every road and load is different. The microcellular urethane springs compress easily for lighter loads, giving you soft engagement and a smoother ride. Add more weight, and they stiffen up automatically—compressing by as much as 80 percent to give the support you need without bottoming out. The result is better traction, steadier steering, and less bounce when you hit uneven pavement.
Each SumoSpring works on its own to balance side-to-side loads. That independent action helps reduce body roll in sharp turns and keeps things planted when crosswinds or curves try to push you around. Even with an off-center load, your truck stays level and stable through corners or uneven driveways.
These springs are made from sturdy closed-cell urethane that resists oil, salt, abrasion, and UV damage. They perform from -25°F to 200°F and compress vertically with minimal expansion to the sides so they won’t rub against nearby parts. With no air lines or valves to maintain, they’re completely maintenance-free—just install them and hit the road with confidence.
The custom-fit design bolts right into place with included spacers, mounting plates, and hardware. No drilling or air system setup needed—just a straightforward install you can do with basic tools. Once mounted, the springs work quietly in the background to keep your suspension strong, level, and ready for whatever load comes next.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews
Kate F.
3/5/2026
I was very sorry to hear this Joshua, so I reached out to SuperSprings to see why this is. I sent your pictures and your review to them and this was their response: "The spacer is required to avoid the overlap -- the spacer is needed. That photo of the install looks perfect and they have the perfect amount of air gap. That SumoSpring can compress up tp 70% body height, so there should be no concern about limited suspension travel." Did you install the spacer?
Kate F.
3/5/2026
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Brooke M.
6/18/2025
Definitely less moving parts to worry about than airbags :) The install looks great! Are you hitched up in the photo to test out the springs or were you actually on your way to the water?